The distinctive feature of man - spiritual nature - according to Christian doctrine, puts him at a height unattainable for the rest of the animal world and isolates his life so much that an immeasurable abyss opens between two forms of the same, apparently animal life. Man, by virtue of his inherent higher spiritual powers, abilities and aspirations, creates his life completely in exceptional conditions and direction characteristic only of human nature, while the rest of the animal world has its own special, very limited in comparison with human, sphere of activity.< /p> Source: